Home / 15,547.08-21,455.09-8,473.48

Finding the Fourth Proportional to 15,547.08, 21,455.09 and 8,473.48

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Solution

The fourth proportional to 15,547.08, 21,455.09 and 8,473.48 is: 11,693.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,547.08 : 21,455.09 = 8,473.48 : x
  2. Step 2: Convert to fraction form
    15,547.08/21,455.09 = 8,473.48/x
  3. Step 3: Cross multiply
    15,547.08x = 21,455.09 × 8,473.48
  4. Step 4: Simplify right side
    15,547.08x = 181,799,276.01
  5. Step 5: Solve for x
    x = 181,799,276.01/15,547.08
  6. Step 6: Final answer
    x = 11,693.47

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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.