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Finding the Fourth Proportional to 7,510.60, 11,275.16 and 7,123.12

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Solution

The fourth proportional to 7,510.60, 11,275.16 and 7,123.12 is: 10,693.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,510.60 : 11,275.16 = 7,123.12 : x
  2. Step 2: Convert to fraction form
    7,510.60/11,275.16 = 7,123.12/x
  3. Step 3: Cross multiply
    7,510.60x = 11,275.16 × 7,123.12
  4. Step 4: Simplify right side
    7,510.60x = 80,314,317.70
  5. Step 5: Solve for x
    x = 80,314,317.70/7,510.60
  6. Step 6: Final answer
    x = 10,693.46

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.