Home / 15,312.66-21,133.34-8,598.57

Finding the Fourth Proportional to 15,312.66, 21,133.34 and 8,598.57

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Solution

The fourth proportional to 15,312.66, 21,133.34 and 8,598.57 is: 11,867.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312.66 : 21,133.34 = 8,598.57 : x
  2. Step 2: Convert to fraction form
    15,312.66/21,133.34 = 8,598.57/x
  3. Step 3: Cross multiply
    15,312.66x = 21,133.34 × 8,598.57
  4. Step 4: Simplify right side
    15,312.66x = 181,716,503.32
  5. Step 5: Solve for x
    x = 181,716,503.32/15,312.66
  6. Step 6: Final answer
    x = 11,867.08

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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.