Home / 13,354.34-18,435.13-9,528.91

Finding the Fourth Proportional to 13,354.34, 18,435.13 and 9,528.91

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Solution

The fourth proportional to 13,354.34, 18,435.13 and 9,528.91 is: 13,154.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,354.34 : 18,435.13 = 9,528.91 : x
  2. Step 2: Convert to fraction form
    13,354.34/18,435.13 = 9,528.91/x
  3. Step 3: Cross multiply
    13,354.34x = 18,435.13 × 9,528.91
  4. Step 4: Simplify right side
    13,354.34x = 175,666,624.70
  5. Step 5: Solve for x
    x = 175,666,624.70/13,354.34
  6. Step 6: Final answer
    x = 13,154.28

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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.