Home / 13,485.04-18,610-7,516.76

Finding the Fourth Proportional to 13,485.04, 18,610 and 7,516.76

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Solution

The fourth proportional to 13,485.04, 18,610 and 7,516.76 is: 10,373.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.04 : 18,610 = 7,516.76 : x
  2. Step 2: Convert to fraction form
    13,485.04/18,610 = 7,516.76/x
  3. Step 3: Cross multiply
    13,485.04x = 18,610 × 7,516.76
  4. Step 4: Simplify right side
    13,485.04x = 139,886,903.60
  5. Step 5: Solve for x
    x = 139,886,903.60/13,485.04
  6. Step 6: Final answer
    x = 10,373.49

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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.