Home / 15,467.40-21,345-8,752.91

Finding the Fourth Proportional to 15,467.40, 21,345 and 8,752.91

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Solution

The fourth proportional to 15,467.40, 21,345 and 8,752.91 is: 12,079.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,467.40 : 21,345 = 8,752.91 : x
  2. Step 2: Convert to fraction form
    15,467.40/21,345 = 8,752.91/x
  3. Step 3: Cross multiply
    15,467.40x = 21,345 × 8,752.91
  4. Step 4: Simplify right side
    15,467.40x = 186,830,757.23
  5. Step 5: Solve for x
    x = 186,830,757.23/15,467.40
  6. Step 6: Final answer
    x = 12,079.00

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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.