Home / 18,988.79-26,204.06-10,491.72

Finding the Fourth Proportional to 18,988.79, 26,204.06 and 10,491.72

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Solution

The fourth proportional to 18,988.79, 26,204.06 and 10,491.72 is: 14,478.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,988.79 : 26,204.06 = 10,491.72 : x
  2. Step 2: Convert to fraction form
    18,988.79/26,204.06 = 10,491.72/x
  3. Step 3: Cross multiply
    18,988.79x = 26,204.06 × 10,491.72
  4. Step 4: Simplify right side
    18,988.79x = 274,925,686.61
  5. Step 5: Solve for x
    x = 274,925,686.61/18,988.79
  6. Step 6: Final answer
    x = 14,478.32

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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.