Home / 15,281.02-21,087.44-8,475.01

Finding the Fourth Proportional to 15,281.02, 21,087.44 and 8,475.01

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Solution

The fourth proportional to 15,281.02, 21,087.44 and 8,475.01 is: 11,695.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,281.02 : 21,087.44 = 8,475.01 : x
  2. Step 2: Convert to fraction form
    15,281.02/21,087.44 = 8,475.01/x
  3. Step 3: Cross multiply
    15,281.02x = 21,087.44 × 8,475.01
  4. Step 4: Simplify right side
    15,281.02x = 178,716,264.87
  5. Step 5: Solve for x
    x = 178,716,264.87/15,281.02
  6. Step 6: Final answer
    x = 11,695.31

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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.