Home / 15,657.23-21,608.34-8,585

Finding the Fourth Proportional to 15,657.23, 21,608.34 and 8,585

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Solution

The fourth proportional to 15,657.23, 21,608.34 and 8,585 is: 11,848.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,657.23 : 21,608.34 = 8,585 : x
  2. Step 2: Convert to fraction form
    15,657.23/21,608.34 = 8,585/x
  3. Step 3: Cross multiply
    15,657.23x = 21,608.34 × 8,585
  4. Step 4: Simplify right side
    15,657.23x = 185,507,598.90
  5. Step 5: Solve for x
    x = 185,507,598.90/15,657.23
  6. Step 6: Final answer
    x = 11,848.05

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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.