Home / 15,551.90-21,457.77-9,500.58

Finding the Fourth Proportional to 15,551.90, 21,457.77 and 9,500.58

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Solution

The fourth proportional to 15,551.90, 21,457.77 and 9,500.58 is: 13,108.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,551.90 : 21,457.77 = 9,500.58 : x
  2. Step 2: Convert to fraction form
    15,551.90/21,457.77 = 9,500.58/x
  3. Step 3: Cross multiply
    15,551.90x = 21,457.77 × 9,500.58
  4. Step 4: Simplify right side
    15,551.90x = 203,861,260.51
  5. Step 5: Solve for x
    x = 203,861,260.51/15,551.90
  6. Step 6: Final answer
    x = 13,108.45

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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.