Home / 10,688.60-14,749.02-6,709.40

Finding the Fourth Proportional to 10,688.60, 14,749.02 and 6,709.40

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Solution

The fourth proportional to 10,688.60, 14,749.02 and 6,709.40 is: 9,258.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,688.60 : 14,749.02 = 6,709.40 : x
  2. Step 2: Convert to fraction form
    10,688.60/14,749.02 = 6,709.40/x
  3. Step 3: Cross multiply
    10,688.60x = 14,749.02 × 6,709.40
  4. Step 4: Simplify right side
    10,688.60x = 98,957,074.79
  5. Step 5: Solve for x
    x = 98,957,074.79/10,688.60
  6. Step 6: Final answer
    x = 9,258.19

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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.