Home / 15,258.08-21,054.30-8,543.18

Finding the Fourth Proportional to 15,258.08, 21,054.30 and 8,543.18

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Solution

The fourth proportional to 15,258.08, 21,054.30 and 8,543.18 is: 11,788.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,258.08 : 21,054.30 = 8,543.18 : x
  2. Step 2: Convert to fraction form
    15,258.08/21,054.30 = 8,543.18/x
  3. Step 3: Cross multiply
    15,258.08x = 21,054.30 × 8,543.18
  4. Step 4: Simplify right side
    15,258.08x = 179,870,569.40
  5. Step 5: Solve for x
    x = 179,870,569.40/15,258.08
  6. Step 6: Final answer
    x = 11,788.55

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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.