Home / 10,189.44-15,345.36-8,970.30

Finding the Fourth Proportional to 10,189.44, 15,345.36 and 8,970.30

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Solution

The fourth proportional to 10,189.44, 15,345.36 and 8,970.30 is: 13,509.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,189.44 : 15,345.36 = 8,970.30 : x
  2. Step 2: Convert to fraction form
    10,189.44/15,345.36 = 8,970.30/x
  3. Step 3: Cross multiply
    10,189.44x = 15,345.36 × 8,970.30
  4. Step 4: Simplify right side
    10,189.44x = 137,652,482.81
  5. Step 5: Solve for x
    x = 137,652,482.81/10,189.44
  6. Step 6: Final answer
    x = 13,509.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.