Home / 18,985.64-26,199.56-10,487.28

Finding the Fourth Proportional to 18,985.64, 26,199.56 and 10,487.28

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Solution

The fourth proportional to 18,985.64, 26,199.56 and 10,487.28 is: 14,472.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,985.64 : 26,199.56 = 10,487.28 : x
  2. Step 2: Convert to fraction form
    18,985.64/26,199.56 = 10,487.28/x
  3. Step 3: Cross multiply
    18,985.64x = 26,199.56 × 10,487.28
  4. Step 4: Simplify right side
    18,985.64x = 274,762,121.60
  5. Step 5: Solve for x
    x = 274,762,121.60/18,985.64
  6. Step 6: Final answer
    x = 14,472.10

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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.