Home / 12,346.78-17,038.57-6,970.36

Finding the Fourth Proportional to 12,346.78, 17,038.57 and 6,970.36

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Solution

The fourth proportional to 12,346.78, 17,038.57 and 6,970.36 is: 9,619.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,346.78 : 17,038.57 = 6,970.36 : x
  2. Step 2: Convert to fraction form
    12,346.78/17,038.57 = 6,970.36/x
  3. Step 3: Cross multiply
    12,346.78x = 17,038.57 × 6,970.36
  4. Step 4: Simplify right side
    12,346.78x = 118,764,966.79
  5. Step 5: Solve for x
    x = 118,764,966.79/12,346.78
  6. Step 6: Final answer
    x = 9,619.10

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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.