Home / 7,345.41-10,136.50-3,988.23

Finding the Fourth Proportional to 7,345.41, 10,136.50 and 3,988.23

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Solution

The fourth proportional to 7,345.41, 10,136.50 and 3,988.23 is: 5,503.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,345.41 : 10,136.50 = 3,988.23 : x
  2. Step 2: Convert to fraction form
    7,345.41/10,136.50 = 3,988.23/x
  3. Step 3: Cross multiply
    7,345.41x = 10,136.50 × 3,988.23
  4. Step 4: Simplify right side
    7,345.41x = 40,426,693.40
  5. Step 5: Solve for x
    x = 40,426,693.40/7,345.41
  6. Step 6: Final answer
    x = 5,503.67

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.