Home / 15,354.36-21,182.58-9,384.12

Finding the Fourth Proportional to 15,354.36, 21,182.58 and 9,384.12

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Solution

The fourth proportional to 15,354.36, 21,182.58 and 9,384.12 is: 12,946.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,354.36 : 21,182.58 = 9,384.12 : x
  2. Step 2: Convert to fraction form
    15,354.36/21,182.58 = 9,384.12/x
  3. Step 3: Cross multiply
    15,354.36x = 21,182.58 × 9,384.12
  4. Step 4: Simplify right side
    15,354.36x = 198,779,872.63
  5. Step 5: Solve for x
    x = 198,779,872.63/15,354.36
  6. Step 6: Final answer
    x = 12,946.15

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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.