Home / 12,624.51-18,938.40-4,302.30

Finding the Fourth Proportional to 12,624.51, 18,938.40 and 4,302.30

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Solution

The fourth proportional to 12,624.51, 18,938.40 and 4,302.30 is: 6,454.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,624.51 : 18,938.40 = 4,302.30 : x
  2. Step 2: Convert to fraction form
    12,624.51/18,938.40 = 4,302.30/x
  3. Step 3: Cross multiply
    12,624.51x = 18,938.40 × 4,302.30
  4. Step 4: Simplify right side
    12,624.51x = 81,478,678.32
  5. Step 5: Solve for x
    x = 81,478,678.32/12,624.51
  6. Step 6: Final answer
    x = 6,454.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.