Home / 15,220.58-21,017.76-9,565.13

Finding the Fourth Proportional to 15,220.58, 21,017.76 and 9,565.13

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Solution

The fourth proportional to 15,220.58, 21,017.76 and 9,565.13 is: 13,208.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,220.58 : 21,017.76 = 9,565.13 : x
  2. Step 2: Convert to fraction form
    15,220.58/21,017.76 = 9,565.13/x
  3. Step 3: Cross multiply
    15,220.58x = 21,017.76 × 9,565.13
  4. Step 4: Simplify right side
    15,220.58x = 201,037,501.62
  5. Step 5: Solve for x
    x = 201,037,501.62/15,220.58
  6. Step 6: Final answer
    x = 13,208.27

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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.