Home / 15,835.72-21,860.10-9,547.24

Finding the Fourth Proportional to 15,835.72, 21,860.10 and 9,547.24

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Solution

The fourth proportional to 15,835.72, 21,860.10 and 9,547.24 is: 13,179.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,835.72 : 21,860.10 = 9,547.24 : x
  2. Step 2: Convert to fraction form
    15,835.72/21,860.10 = 9,547.24/x
  3. Step 3: Cross multiply
    15,835.72x = 21,860.10 × 9,547.24
  4. Step 4: Simplify right side
    15,835.72x = 208,703,621.12
  5. Step 5: Solve for x
    x = 208,703,621.12/15,835.72
  6. Step 6: Final answer
    x = 13,179.29

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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.