Home / 13,312.04-19,941.32-6,628.40

Finding the Fourth Proportional to 13,312.04, 19,941.32 and 6,628.40

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Solution

The fourth proportional to 13,312.04, 19,941.32 and 6,628.40 is: 9,929.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.04 : 19,941.32 = 6,628.40 : x
  2. Step 2: Convert to fraction form
    13,312.04/19,941.32 = 6,628.40/x
  3. Step 3: Cross multiply
    13,312.04x = 19,941.32 × 6,628.40
  4. Step 4: Simplify right side
    13,312.04x = 132,179,045.49
  5. Step 5: Solve for x
    x = 132,179,045.49/13,312.04
  6. Step 6: Final answer
    x = 9,929.29

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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.