Home / 15,280.30-21,087.03-9,312.22

Finding the Fourth Proportional to 15,280.30, 21,087.03 and 9,312.22

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Solution

The fourth proportional to 15,280.30, 21,087.03 and 9,312.22 is: 12,851.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,280.30 : 21,087.03 = 9,312.22 : x
  2. Step 2: Convert to fraction form
    15,280.30/21,087.03 = 9,312.22/x
  3. Step 3: Cross multiply
    15,280.30x = 21,087.03 × 9,312.22
  4. Step 4: Simplify right side
    15,280.30x = 196,367,062.51
  5. Step 5: Solve for x
    x = 196,367,062.51/15,280.30
  6. Step 6: Final answer
    x = 12,851.00

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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.