Home / 15,569.56-21,485.99-11,101.10

Finding the Fourth Proportional to 15,569.56, 21,485.99 and 11,101.10

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Solution

The fourth proportional to 15,569.56, 21,485.99 and 11,101.10 is: 15,319.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,569.56 : 21,485.99 = 11,101.10 : x
  2. Step 2: Convert to fraction form
    15,569.56/21,485.99 = 11,101.10/x
  3. Step 3: Cross multiply
    15,569.56x = 21,485.99 × 11,101.10
  4. Step 4: Simplify right side
    15,569.56x = 238,518,091.50
  5. Step 5: Solve for x
    x = 238,518,091.50/15,569.56
  6. Step 6: Final answer
    x = 15,319.51

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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.