Home / 12,888.06-17,785.23-7,510.16

Finding the Fourth Proportional to 12,888.06, 17,785.23 and 7,510.16

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Solution

The fourth proportional to 12,888.06, 17,785.23 and 7,510.16 is: 10,363.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,888.06 : 17,785.23 = 7,510.16 : x
  2. Step 2: Convert to fraction form
    12,888.06/17,785.23 = 7,510.16/x
  3. Step 3: Cross multiply
    12,888.06x = 17,785.23 × 7,510.16
  4. Step 4: Simplify right side
    12,888.06x = 133,569,967.40
  5. Step 5: Solve for x
    x = 133,569,967.40/12,888.06
  6. Step 6: Final answer
    x = 10,363.86

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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.