Home / 15,209.23-20,988.63-8,403.67

Finding the Fourth Proportional to 15,209.23, 20,988.63 and 8,403.67

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Solution

The fourth proportional to 15,209.23, 20,988.63 and 8,403.67 is: 11,597.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,209.23 : 20,988.63 = 8,403.67 : x
  2. Step 2: Convert to fraction form
    15,209.23/20,988.63 = 8,403.67/x
  3. Step 3: Cross multiply
    15,209.23x = 20,988.63 × 8,403.67
  4. Step 4: Simplify right side
    15,209.23x = 176,381,617.36
  5. Step 5: Solve for x
    x = 176,381,617.36/15,209.23
  6. Step 6: Final answer
    x = 11,597.01

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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.