Home / 15,589.72-21,513.90-9,300.52

Finding the Fourth Proportional to 15,589.72, 21,513.90 and 9,300.52

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Solution

The fourth proportional to 15,589.72, 21,513.90 and 9,300.52 is: 12,834.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,589.72 : 21,513.90 = 9,300.52 : x
  2. Step 2: Convert to fraction form
    15,589.72/21,513.90 = 9,300.52/x
  3. Step 3: Cross multiply
    15,589.72x = 21,513.90 × 9,300.52
  4. Step 4: Simplify right side
    15,589.72x = 200,090,457.23
  5. Step 5: Solve for x
    x = 200,090,457.23/15,589.72
  6. Step 6: Final answer
    x = 12,834.77

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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.