Home / 14,718.38-20,312.70-9,056.78

Finding the Fourth Proportional to 14,718.38, 20,312.70 and 9,056.78

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Solution

The fourth proportional to 14,718.38, 20,312.70 and 9,056.78 is: 12,499.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,718.38 : 20,312.70 = 9,056.78 : x
  2. Step 2: Convert to fraction form
    14,718.38/20,312.70 = 9,056.78/x
  3. Step 3: Cross multiply
    14,718.38x = 20,312.70 × 9,056.78
  4. Step 4: Simplify right side
    14,718.38x = 183,967,655.11
  5. Step 5: Solve for x
    x = 183,967,655.11/14,718.38
  6. Step 6: Final answer
    x = 12,499.18

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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.