Home / 15,436.90-21,303.27-9,065.32

Finding the Fourth Proportional to 15,436.90, 21,303.27 and 9,065.32

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Solution

The fourth proportional to 15,436.90, 21,303.27 and 9,065.32 is: 12,510.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,436.90 : 21,303.27 = 9,065.32 : x
  2. Step 2: Convert to fraction form
    15,436.90/21,303.27 = 9,065.32/x
  3. Step 3: Cross multiply
    15,436.90x = 21,303.27 × 9,065.32
  4. Step 4: Simplify right side
    15,436.90x = 193,120,959.60
  5. Step 5: Solve for x
    x = 193,120,959.60/15,436.90
  6. Step 6: Final answer
    x = 12,510.35

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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.