Home / 15,377.48-21,219.80-9,088.64

Finding the Fourth Proportional to 15,377.48, 21,219.80 and 9,088.64

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Solution

The fourth proportional to 15,377.48, 21,219.80 and 9,088.64 is: 12,541.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,377.48 : 21,219.80 = 9,088.64 : x
  2. Step 2: Convert to fraction form
    15,377.48/21,219.80 = 9,088.64/x
  3. Step 3: Cross multiply
    15,377.48x = 21,219.80 × 9,088.64
  4. Step 4: Simplify right side
    15,377.48x = 192,859,123.07
  5. Step 5: Solve for x
    x = 192,859,123.07/15,377.48
  6. Step 6: Final answer
    x = 12,541.66

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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.