Home / 15,547.20-23,320.80-14,186.40

Finding the Fourth Proportional to 15,547.20, 23,320.80 and 14,186.40

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Solution

The fourth proportional to 15,547.20, 23,320.80 and 14,186.40 is: 21,279.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,547.20 : 23,320.80 = 14,186.40 : x
  2. Step 2: Convert to fraction form
    15,547.20/23,320.80 = 14,186.40/x
  3. Step 3: Cross multiply
    15,547.20x = 23,320.80 × 14,186.40
  4. Step 4: Simplify right side
    15,547.20x = 330,838,197.12
  5. Step 5: Solve for x
    x = 330,838,197.12/15,547.20
  6. Step 6: Final answer
    x = 21,279.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.